Resistance is 5.5 and 6.0 ohms on the tweeters without disoldering them from the XO, but with the fuzes removed and the speakers disconnected from the receiver. ?I tested both external fuzes on each speaker and they are fine as far as I can tell (essentially the same result as if I touch the two probes together).
Before I saw your dire warning, I hooked speaker wires directly to them and ran them softly. ?Plenty of noise coming from them that way, juxtaposed with zero noise coming from them when I hook up the speakers normally. ?I should mention that the woofer and the midrange are operating fully (as far as I know). ?That is to say, music is coming from them in what I can only assume is the expected way.